Dumortierite, Natural, Smooth Round, in sizes 4mm, 6mm, 8mm & 10mm

Dumortierite, Natural, Smooth Round, 4mm, 6mm, 8mm & 10mm

This price is for one strand 15 to 16 inches long

4mm strands have 90 to 95 pieces

6mm strands have 60 to 65 pieces

8mm strands have 43 to 48 pieces

10mm strands have 33 to 38 pieces

Dumortierite is a rare aluminum boro-silicate mineral. It is best known for its deep, dusky blue color, which often leads to it being nicknamed the "Blue Denim Stone."

First discovered in 1881 in France and named after the French paleontologist Eugène Dumortier. Today, major deposits are found in Brazil (specifically known for high-quality blue quartz inclusions), Madagascar, Sri Lanka & United States: Nevada and California.

Mohs Hardness 7-8.5

Made in China.